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Holder of magnetic storage apparatus, magnetic storage apparatus and electric device including the same


Title: Holder of magnetic storage apparatus, magnetic storage apparatus and electric device including the same.
Abstract: A holder of a magnetic storage apparatus is suggested that can efficiently absorb the shock when a vibration or shock is applied to the magnetic storage apparatus. A plurality of holding members (first shock absorbing material foam rubber 340 and second shock absorbing material foam rubber 350) that hold at least two corner parts of the magnetic storage apparatus 320 is included. The holding members are configured in a way that a total sum of holding power to hold one of opposite angles of the magnetic storage apparatus 320 and a total sum of holding power to hold the other of opposite angles are different. The first shock absorbing material foam rubber 340 is disposed on one of opposite angles, and the second shock absorbing material foam rubber 350 is disposed on the other of the opposite angles. The first shock absorbing material foam rubber 340 has greater hardness than the hardness of the second shock absorbing material foam rubber 350. ...




USPTO Applicaton #: #20110002213 - Class: 369 7511 (USPTO) - 01/06/11 - Class 369 
Inventors: Toshinobu Ogatsu, Kenichiro Fujii

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The Patent Description & Claims data below is from USPTO Patent Application 20110002213, Holder of magnetic storage apparatus, magnetic storage apparatus and electric device including the same.

TECHNICAL FIELD

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The present invention relates to a holder of a magnetic storage apparatus for holding the magnetic storage apparatus to a housing, and a magnetic storage apparatus and an electronic device including the same.

BACKGROUND ART

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In a notebook personal computer, music terminal, and information terminal, while miniaturization and thinning advances, multi-functionalization progresses at the same time owing to improvement in operation throughput or the like, and data volume to process is also increasing. In such apparatus, in addition to internal memories, such as a semiconductor memory, it is desired to mount a relatively cheap and large-capacity hard disk storage apparatus.

However, a magnetic storage apparatus like a hard disk apparatus is vulnerable to external force structurally such as a fall, vibration, or shock. In consideration of protecting the magnetic storage apparatus from mechanical factors, such as vibration and shock, it is necessary to roughly divide the state between operation time and non-operation time of the magnetic storage apparatus before consideration. The magnetic storage apparatus here generally has the swing arm head structure driven by a voice coil motor (VCM). Since this structure is suitable for moving a head at high speed, it is possible to respond to higher speed and larger capacity. The operation time indicates the state in which the head is positioned over a disc, and performing the tasks such as writing to or reading from the magnetic disk. The non-operation time indicates that at other time than the operation time, the head is evacuated from the disk and the rotation of the disk is stopped in some cases.

At the operation time, the head is over the magnetic disk and slightly floats by air pressure, however when the head contacts the magnetic disk by vibration or shock, there is a possibility of giving a scratch. For this reason, if excessive acceleration is applied to the magnetic storage apparatus, the head may be at the position to evacuate from the magnetic disk.

At the non-operation time, the head is evacuated from the disk and the head will not directly scratch the disk. However the head is held only by a VCM magnet and induced electromotive force of the coil, thus if external force of a certain fixed value or more is applied, the head mores over the disk, and there is a possibility of scratching the disk.

In order to prevent the head from contacting the magnetic disk by a vibration or shock, there are many methods suggested to attach a shock absorbing material typified by a rubber material and gel material in a gap between the magnetic storage apparatus and the housing to hold the magnetic storage apparatus.

Patent documents 1 and 2 disclose to include an elastic shock absorbing body which absorbs shock energy by elastic deformation, and the plastic shock absorbing body which absorbs shock energy by plastic deformation, between a disk drive and a case in order to protect the built-in device from shock. A shock less than or equal to a certain acceptable value is absorbed by deformation of the elastic shock absorbing body, and a shock more than or equal to the certain acceptable value is absorbed by deformation of the plastic shock absorbing body.

Patent documents 3 and 4 disclose to supply a plurality of anti-vibration rubber between a mounting frame of the head disk assembly, have a different strength for at least one of the anti-vibration rubber from the other anti-vibration rubber, so as to stabilize the hold state of the head disk assembly.

[Patent Document 1] Japanese Unexamined Patent Application Publication No. 2002-358140 [Patent Document 2] Japanese Unexamined Patent Application Publication No. 2003-242764 [Patent Document 3]

Japanese Unexamined Patent Application Publication No. 03-104079

[Patent Document 4] Japanese Unexamined Patent Application Publication No. 01-46284 DISCLOSURE OF INVENTION Technical Problem

When the magnetic storage apparatus receives a shock or vibration from a side surface direction, there is a possibility that the head evacuated from the disk moves over the disk in a plane direction by the shock or vibration, and contact the disk. However, the apparatuses disclosed in the patent documents 1 to 4 have no consideration over the configuration to avoid the movement of the head in the plane direction by the shock or vibration received from the side surface of the magnetic storage apparatus.

The present invention is made in view of such problem, and aims to provide a holder of the magnetic storage apparatus that is capable of efficiently absorbing the shock by converting the vibration and shock of the magnetic storage apparatus to rotational movement of the magnetic storage apparatus in the plane direction.

Technical Solution

According to one aspect of a holder of a magnetic apparatus of the present invention, a plurality of holding members are included that hold at least two corner parts of the magnetic storage apparatus, in which for the holding members, a sum total of holding power to hold one of opposite angles of the magnetic storage apparatus is different from a sum total of holding power to hold another of opposite angles.

ADVANTAGEOUS EFFECTS

According to one aspect of the magnetic storage apparatus of the present invention, by configuring in a way to differentiate a total sum of holding power to hold one of the opposite angles of the magnetic storage apparatus from a total sum of holding power to hold the other of opposite angles, it is possible to have different amount of deformation per unit volume for each of the holding members when a shock is applied to the magnetic storage apparatus, thereby facilitating energy by the shock to be converted to rotation of the magnetic storage apparatus.

BRIEF DESCRIPTION OF DRAWINGS

FIG. 1 is a perspective view illustrating a notebook personal computer including a holder of a magnetic storage apparatus according to the present invention in a first embodiment of the present invention;

FIG. 2 is a perspective view of the notebook personal computer of FIG. 1 viewed from the bottom surface;

FIG. 3 is a perspective view of the notebook personal computer according to the present invention viewed from the bottom surface, and is an exploded view of FIG. 2;

FIG. 4 is a bottom view when removing a magnetic storage apparatus cover 260 of FIG. 2;

FIG. 5 is an exploded view of a magnetic storage apparatus unit 300;

FIG. 6 is a perspective view of the magnetic storage apparatus unit 300 in the state where an upper case 310 is removed;

FIG. 7 is a plan view of the magnetic storage apparatus unit 300 in the state where the upper case 310 is removed;

FIG. 8A illustrates an operation of the holder of the magnetic storage apparatus according to the first embodiment;

FIG. 8B illustrates an operation of the holder of the magnetic storage apparatus according to the first embodiment;

FIG. 9A illustrates an operation of the holder of the magnetic storage apparatus according to the first embodiment;

FIG. 9B illustrates an operation of the holder of the magnetic storage apparatus according to the first embodiment;

FIG. 10 is a plan view illustrating the configuration of a holder of a magnetic storage apparatus 320 according to a second embodiment of the present invention;

FIG. 11 is a perspective view illustrating a configuration example of a holder of a magnetic storage apparatus according to a third embodiment of the present invention;

FIG. 12 is a perspective view illustrating a configuration example of a holder of a magnetic storage apparatus according to a fourth embodiment of the present invention;

FIG. 13 is a perspective view illustrating a configuration example of a holder of a magnetic storage apparatus according to a fifth embodiment of the present invention;

FIG. 14 is a plan view of FIG. 13;

FIG. 15 is a plan view illustrating the configuration of a holder of a magnetic storage apparatus according to a sixth embodiment;

FIG. 16A is a plan view illustrating a configuration example of a holder of a magnetic storage apparatus according to a seventh embodiment;

FIG. 16B is a plan view illustrating the configuration example of the holder of the magnetic storage apparatus according to the seventh embodiment;

FIG. 17A is a plan view illustrating a configuration example of a holder of a magnetic storage apparatus according to a eighth embodiment; and

FIG. 17B is a plan view illustrating the configuration example of the holder of the magnetic storage apparatus according to the eighth embodiment.

EXPLANATION OF REFERENCE

100 DISPLAY UNIT 110 LIQUID CRYSTAL 120 FRAME 130 BACK COVER 200 INPUT UNIT 210 HOUSING 211 RIB 212 HINGE 220 KEYBOARD 230 CONTACT PAD 240 REAR COVER 250 BATTERY COVER 260 MAGNETIC STORAGE APPARATUS COVER 270 MOUNTING SUBSTRATE 280 BATTERY 300 MAGNETIC STORAGE APPARATUS UNIT 310 UPPER CASE 320 MAGNETIC STORAGE APPARATUS 321 DISTRIBUTION CABLE 324 STOPPER 325 HEAD 330 LOWER CASE 331 CONNECTOR 340 TO 343 FIRST SHOCK ABSORBING MATERIAL FOAM RUBBER 340A TO 340D SHOCK ABSORBING MATERIAL FOAM RUBBER 340a HOLE 350 TO 355 SECOND SHOCK ABSORBING MATERIAL FOAM RUBBER 360 BLADE SPRING 361 THIRD SHOCK ABSORBING MATERIAL FOAM RUBBER 361a HOLE

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, embodiments of the present invention are described with reference to the attached drawings.

First Embodiment

FIG. 1 is a perspective view illustrating a notebook personal computer including a holder of a magnetic storage apparatus according to the present invention in the first embodiment of the present invention. A notebook personal computer includes a display unit 100 and an input unit 200. A magnetic storage apparatus unit 300 is built in the input unit 200. The input unit 200 includes a housing 210, a keyboard 220, and a contact pad 230. The liquid crystal unit 110 includes liquid crystals 110. FIG. 2 is a perspective view of the notebook personal computer of FIG. 1 viewed from the bottom surface. A rear cover 240, battery cover 250, and magnetic storage apparatus cover 260 are disposed to the housing 210. Each cover is connected to the housing 210 by a screw or the like which is not illustrated. Note that the electronic device to which the holder is mounted according to the present invention is not limited to a notebook personal computer, but may be an electronic, device such as a music terminal or information terminal.

FIG. 3 is the perspective view of the notebook personal computer according to the present invention viewed from the bottom surface, and is an exploded view of FIG. 2. FIG. 4 is a bottom view when removing the magnetic storage apparatus cover 260 of FIG. 2. As illustrated in FIG. 3, in the housing 210, a mounting substrate 270, a battery 280, and a magnetic storage apparatus unit 300 are included. A rib 211, a fixing member for fixing the magnetic storage apparatus, is formed to the housing 210. The housing 210 is connected to the display unit 100 with a hinge 212 interposed therebetween. The display unit 100 has the liquid crystals 110, a frame 120, and a back cover 130 (FIG. 4). FIG. 3 illustrates the state in which the magnetic storage apparatus cover 260 is removed and the magnetic storage apparatus unit 300 is exposed. The magnetic storage apparatus unit 300 is configured to be replaceable as a removable unit.

FIG. 5 is an exploded view of the magnetic storage apparatus unit 300. To the magnetic storage apparatus unit 320, a magnetic storage apparatus 320 is mounted between an upper case 310 and a lower case 330 with a first shock absorbing material foam rubber 340 and a second shock absorbing material foam rubber 350 interposed therebetween. The first shock absorbing material foam rubber 340 and the second shock absorbing material foam rubber 350 are disposed on four corners (corner parts) of the magnetic storage apparatus 320. The upper case 310 and lower case 330 need to be rigid bodies themselves, and are desirably an aluminum case or thin plate stainless case. If the upper case 310 and lower case 330 are resin cases, it is necessary to have the structure in which they are firmly fixed by the rib 211 (FIG. 3) mounted in the housing 210 so as not to be deformed. A distribution cable 321 of the magnetic storage apparatus 320 is connected to a connector 331 of the lower case 330, and to a connector over the mounting substrate 270 (FIG. 3) mounted to the housing 210.

FIG. 6 is a perspective view of the magnetic storage apparatus unit 300 in the state where the upper case 310 is removed. FIG. 7 is a plan view of the magnetic storage apparatus unit 300 in the state where the upper case 310 is removed. The holder of the magnetic storage apparatus according to the present invention includes a plurality of holding members (for example, the first shock absorbing material foam rubber 340 and the second shock absorbing material foam rubber 350) for holding the corner parts of the magnetic storage apparatus. The holding members are configured in a way that a sum total of holding power for holding one of opposite angles is different from a sum total of holding power for holding the other of the opposite angles. In the first embodiment, all the holding members disposed on the four corners have the same shape.

The first shock absorbing material foam rubber 340 is disposed on the upper left and lower right of the magnetic storage apparatus 320, and is disposed on one diagonal (FIG. 7). Further, the second shock absorbing material foam rubber 350 is disposed on the upper right and lower left of the magnetic storage apparatus 320, and is disposed on the other diagonal of the magnetic storage apparatus 320. The first shock absorbing material foam rubber 340 and the second shock absorbing material foam rubber 350 can be a viscoelastic rubber, silicone elastomer, and gel material, for example.

As for the holding members, the members holding the opposite angles to be paired up are formed to have the same hardness. Specifically, the hardness of the first shock absorbing material foam rubber 340 which holds the upper left and lower right of the magnetic storage apparatus 320 is equal. Moreover, the hardness of the second shock absorbing material foam rubber 350 holding the upper right and lower left of the magnetic storage apparatus 320 is equal. In this embodiment, in order to fully absorb the shock, it is preferable that a hardness difference between the first shock absorbing material foam rubber 340 and the second shock absorbing material foam rubber 350 is about 1.5 times to twice. Note that in the explanation, it is considered that the first shock absorbing material foam rubber 340 has greater hardness than the second shock absorbing material foam rubber 350.




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stats Patent Info
Application #
US 20110002213 A1
Publish Date
01/06/2011
Document #
12735979
File Date
01/21/2009
USPTO Class
369 7511
Other USPTO Classes
36167931, G9B 33002
International Class
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Drawings
18


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